How to find unused flutter classes in Android Studio or Visual Studio Code

Question

Dart code metrics https://pub.dev/packages/dart_code_metrics
supports finding unused files for flutter.
As commented by in 2023, unfortunately, it is not free anymore https://dcm.dev/pricing/.
To purchase a license, see their website.

install:

      flutter pub add --dev dart_code_metrics

run “flutter packages get” or use your IDE to “Pub get”.

run:

     flutter pub run dart_code_metrics:metrics check-unused-files lib

result:

    Unused file: lib/generated_plugin_registrant.dart
    Unused file: lib/ux/Pdf/makepdfdocument.dart
    Unused file: lib/ux/RealEstate/realestatetable.dart
...
Total unused files - 11

Howo to find unused dart or flutter files (Medium)

Introduction to dart-code-metrics (Medium)

Code-metrics can also give insight in:

Cyclomatic Complexity
Lines of Code
Maximum Nesting
Number of Methods
Number of Parameters
Source lines of Code
Weight of a Class

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